Caption: Proton 1 exhibition display. The Proton 1 was an early satellite designed by the Soviet Union. Four Proton satellites were launched between 1965 and 1968. This display is part of the space (Kosmos) pavilion at the Soviet national exhibition centre (All-Union Exhibition of People's Economic Achievements, VDNKh). This is now known as the All-Russia Exhibition Centre, and is located in Moscow, Russia. Photographed in 1967.